A Mobile CAD Reality Check, Part 2

Phones and tablets won't take the place of your workstation, but they can make field operations more efficient.

In the first article in this two-part series, I began an exploration of how mobile CAD applications for phones, tablets, and notebooks might change the way we view and manage CAD. In this installment, I'll wrap up my discussion of mobile CAD by considering how these applications' strengths and weaknesses could impact our CAD workflows. Here goes.

Small Devices, Big Limitations

The more I expolore mobile CAD applications, the more I believe that they will not even come close to replacing traditional workstation-based CAD. Instead they will be relegated to use in the field by workers who can't easily lug around a full-sized computer. I disagree with those who believe we'll all be doing CAD editing on our phones soon, because of the following factors:

Interface size. Phones and tablets are too small for large-scale CAD work. There's simply no way I can be as productive on a tablet as I can at my workstation, with its 24-inch or larger HD screen. And on a microscopic phone screen? I think not.

Input difficulty. Even the well-designed touch-screen keypads on Apple devices are nowhere near as fast for data input as a full size keyboard with a scrolling-enabled mouse — and trying to format text on a phone-sized device is simply painful.

Lack of OS support. Full-featured CAD applications are primarily Windows-based (with an increasing amount of support for Mac). These applications simply aren't going to be fully ported to Apple iOS–based or Android-based mobile devices. Instead, we'll see smaller applications with limited feature sets — and limited feature sets mean we won't be able to perform high-powered CAD work.

Portable Devices, Annotative Workflow

If you've ever done field work, you've probably recorded comments on ragged 11 x 17 print sets laid out on the hood of a truck or a pair of sawhorses. These marked-up prints, which serve as the as-built records for the project, eventually make their way back to the home office so CAD models and documentation can be updated.

This is a scenario where tablet-based annotation capture can really start to displace paper — and improve the process. Consider the following workflow:

To the cloud: CAD workers in the office finalize documentation for a field-based job, then publish the files to a cloud-based directory made available to field-based workers with tablets.

From the cloud: Field personnel use their mobile devices to access the cloud-based directory, where they can open a read-only copy of the latest documentation for the project they are working on.

Annotation: Field personnel capture their comments, markups, and field orders with their tablets, using applications that support CAD file markup, note embedding in spreadsheets, and even markup capabilities for word-processing documents.

Extra annotation: Since tablet-style devices also support video and photo capture, it would be possible to create site documentation on the fly without having to carry cameras or juggle memory cards.

Back to the cloud: Field personnel now upload their annotations to the secure cloud folder where in-house workers can view the files and make record changes to project documentation.

This entire process could actually happen several times during the course of a day, if necessary. There's no need to tote paper documents back to the main office, and no need for Wi-Fi, battery-guzzling laptops, AC power, or printers at the site. For the price of a tablet device, some cloud integration, and a reliable cellular carrier, you're in business.

Cheaper and Faster

Note that the above on-site workflow radically alters the type and amount of gear you have to carry to work on site, making your burden cheaper and lighter. (Traveling workers will appreciate this fact every time they don't have to dump a huge bag full of devices into a plastic security bin at the airport.) Another benefit is that when on-site workers can connect to the office on a nearly real-time basis, processes that used to take days can take just hours instead.

As I've pointed out many times, software applications only catch on when they let you do your job more quickly and cheaply. Mobile CAD will do both for onsite personnel, so mobile CAD will be adopted rapidly.

CAD Management Impact

Since it seems inevitable, how do we plan for mobile CAD's adoption? How can we put processes in place today that'll help us control mobile CAD, rather than trying to play catch-up later? These are very valid questions that CAD managers will do well to ponder.

I don't pretend to have all the answers, but the following strategies will serve most CAD managers well:

Experiment now. Check with your CAD manufacturer for mobile CAD applications, download them, and play with them. There's no other way to know what's available to you. And repeat this exercise frequently, because mobile CAD applications are changing fast.

Plan for the cloud. Cloud-based storage will be a key part of allowing mobile CAD workers to access their work from tablet-style devices, so you'll need to explore your options. Make sure you can store files to the cloud at your office and read files from the cloud at remote sites.

Prepare for in-house changes. Before remote workers can access cloud-based files, your in-house design staff will have to place them there. How will that process work? How disruptive will it be? How much technical support will this require? These are all questions that have to be answered via experimentation.

Benchmark speed. Determine how long it takes to download files to a tablet to see if the speeds will be tolerable for your workers. Of course, 4G speeds will become more widely available in metro areas, but most likely not at remote sites where your remote workers might be, such as paper mills or cold storage warehouses in agricultural applications.

Summing Up

I encourage CAD managers to give some thought to how mobile CAD applications could benefit their mobile workforce, and how preparing to support mobile CAD will affect those in the main office. Make no mistake, mobile CAD is going to change the way we manage CAD. The only question is, will you be ready for the change?

About the Author: Robert Green

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Comments

Re: A Mobile CAD Reality Check, Part 2

by: Paragon on: March 14, 2012 - 7:39pm

Some comments on things that I think may have been overlooked in writing this article.
Interface size: My Samsung Galaxy S2 can output to HDMI (1080p), I see this becoming a reoccurring feature in future phones, if I walked in to another office now which has a reasonably new monitor available I could simply plug my phone in to it and start working.
Input difficulty: The S2 (and other phones) can also have usb attachments, including a keyboard and mouse, again a feature which I see not only sticking around but increasing in the future, combine this with a usb hub, and you have a laptop you can carry around in your pocket (just try not to put your keys in there as well...)
Lack of OS support: I think you've missed what could be a very big change for computer users on the horizon. Windows 8. If you believe the hype this OS will bridge a lot of the existing gaps between Smartphone and pc's. I have installed and tested this on a PC, but not a Smartphone yet, If you haven't already tested it there is a developer's Beta available from Microsoft which is worth a look to see where software is heading. The majority of software developers tend to follow Microsoft's lead, we can only assume Autodesk will keep up with this. Which means that cad software will be exactly the same on both phone and pc in the very near future.
I'm not saying that you will want to sit on site and draft on your tablet, I do agree with you that it is not as time effective, but the biggest problems that you have brought up can be overcome fairly simply, now and in the immediate future. A portable cad licence on my phone which I can work from home, or any office on the same files and software set up, will save thousands of dollars in software/hardware/time, and I believe is well on its way, each year the gap between pc and phone closes.

Re: A Mobile CAD Reality Check, Part 2

by: mobileCAD on: March 11, 2013 - 4:44pm

Mobile CAD is not CAD on a smaller screen. In our experience, it is custom applications that take advantage of the technologies found in mobile devices such as gyroscopes, accelerometers, GPS, cameras, etc. The simplest solutions, such as field markup described in this article, are 3D visualizations. More complex solutions, like in our vueCAD application, maintain the data structures necessary to make accurate calculations on the CAD geometry.
One example use is control of laser scanning and laser projection systems in Aerospace assembly. Another use is in a visual verification system in Shipping and Receiving at a major Automotive manufacturer. The applications are bound not by CAD or the size of the screen, but only by the imagination of our customers.

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